// Copyright (C) 2025 Kumo inc.
// Author: Jeff.li lijippy@163.com
// All rights reserved.
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as published
// by the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program.  If not, see <https://www.gnu.org/licenses/>.
//

#ifndef ROTHAR_PEGTL_CONTRIB_JSON_POINTER_HPP
#define ROTHAR_PEGTL_CONTRIB_JSON_POINTER_HPP

#include "../ascii.hpp"
#include "../config.hpp"
#include "../rules.hpp"
#include "../utf8.hpp"

namespace rothar::json_pointer
{
   // JSON pointer grammar according to RFC 6901

   // clang-format off
   struct unescaped : utf8::ranges< 0x0, 0x2E, 0x30, 0x7D, 0x7F, 0x10FFFF > {};
   struct escaped : seq< one< '~' >, one< '0', '1' > > {};

   struct reference_token : star< sor< unescaped, escaped > > {};
   struct json_pointer : star< one< '/' >, reference_token > {};
   // clang-format on

   // relative JSON pointer, see ...

   // clang-format off
   struct non_negative_integer : sor< one< '0' >, plus< digit > > {};
   struct relative_json_pointer : seq< non_negative_integer, sor< one< '#' >, json_pointer > > {};
   // clang-format on

}  // namespace rothar::json_pointer

#endif
